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Upgrading a BlackBerry Domain

If you upgrade a BlackBerry® Enterprise Server environment that includes more than one BlackBerry Enterprise Server instance, you can choose from a variety of upgrade processes, depending on the existing architecture of the BlackBerry Domain and how you expect the architecture to change as you add BlackBerry device users, install additional BlackBerry Enterprise Server components and instances, and configure new features.

You can consider the following infrastructure variations as you plan the upgrade process for your organization's environment.

Variation

Description

MSDE or Microsoft® SQL Server® used to host the BlackBerry Configuration Database

If your organization's environment includes MSDE, you must upgrade to a later version of Microsoft SQL Server.

You can upgrade to Microsoft SQL Server Express if your organization's environment does not include many BlackBerry device users and you do not plan to add any more.

You can upgrade to Microsoft SQL Server if you expect the number of BlackBerry device users to increase to more than 500.

You can upgrade the database server that hosts the BlackBerry Configuration Database before you upgrade the BlackBerry Enterprise Server.

BlackBerry Configuration Database installed locally or on a separate computer

If you expect the number of BlackBerry device users to increase, you might want to install the BlackBerry Configuration Database on its own computer. When you install the BlackBerry Configuration Database on its own computer, you increase the system resources that are available to the BlackBerry Configuration Database and BlackBerry Enterprise Server, and make it easier to configure features such as high availability.

network proximity of the BlackBerry Enterprise Server, BlackBerry Configuration Database, messaging servers, and other third-party systems

If you configure the BlackBerry Enterprise Server, BlackBerry Configuration Database, messaging servers, and other third-party systems on separate LANs connected by a WAN, the upgrade process takes longer to complete.
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